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From "Luca Cavanna (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3976) Improve error messages for unsupported Hunspell formats
Date Fri, 01 Jun 2012 08:21:23 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287260#comment-13287260
] 

Luca Cavanna commented on LUCENE-3976:
--------------------------------------

Hi Chris, 
I agree with you. On the other hand with the affix rule mentioned, before LUCENE-4019 we had
an AOE, so the additional catch would have been useful just to throw a nicer error message
like "Error while parsing the affix file". That one has been solved at its source, for now
I don't see any other possible errors but I'm sure there are some, maybe plenty since we support
only a subset of the formats and features.
It was just a way to introduce a generic error message but I totally agree that the right
apporach would be fixing everything at the source.
                
> Improve error messages for unsupported Hunspell formats
> -------------------------------------------------------
>
>                 Key: LUCENE-3976
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3976
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/analysis
>            Reporter: Chris Male
>         Attachments: LUCENE-3976.patch, LUCENE-3976.patch
>
>
> Our hunspell implementation is never going to be able to support the huge variety of
formats that are out there, especially since our impl is based on papers written on the topic
rather than being a pure port.
> Recently we ran into the following suffix rule:
> {noformat}SFX CA 0 /CaCp{noformat}
> Due to the missing regex conditional, an AOE was being thrown, which made it difficult
to diagnose the problem.
> We should instead try to provide better error messages showing what we were unable to
parse.

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